#QUALITYGAGINGTIPS

Just This Once, You Can Blame the Gage

Even the old, reliable gage is subject to wear. George Schuetz, director of precision gages at Mahr inc., gives guidance for machinists to maintain their gages.

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How To Measure Surface Roughness on Large Parts

Performing surface finish measurements on large or complex parts can be made much easier with properly designed fixturing.

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Introduction to Digital Depth Gage Styles

There are many digital calipers specifically designed as depth gages. They share some common features but come in a variety of styles. Here are several to consider. 

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Artificial Intelligence from an Intelligent Amplifier

With intelligent amplifiers providing measuring capabilities and easier setups, it’s easier than ever to understand what is going on in the manufacturing process in real time.

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Cord Cutting and Code Reading Make Gaging Smarter

Many companies have “cut the cord” to streamline metrology operations and data management. Barcode scanning is an additional option.

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What’s the Correct Reading?

A CMM, a bore mic and an air gage measure parts differently and may provide different values, yet all of them may be correct. Here’s how.

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Know the Performance Levels of Your Gages

By understanding the characteristics of three types of gages, you can choose the correct one for your application.

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There is More Than One Way to Find a Match

Three ways to control the clearance between critical-fit parts.

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Is It a Gaging Display or a Computer?

Sometimes, it’s hard to tell the difference.

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Getting More with Digital Indicators

Today’s digital indicators are not only replacing dial indicators in some instances, but they are also approaching the performance of bench amplifiers at a fraction of the cost.

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Taking A Reading on Gages

Are we taking advantage of the vast amounts of dimensional information that a gage or hand tool can produce? Certainly not if the information presented on the gage display reads only “over,” “under” or “good.”

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Ask Questions About Surface Finish Call-outs

All the details of the measuring process must be uncovered.

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Closing the Loop for Better Gaging

Gages and measuring instruments come in different shapes and sizes. Whether it be a snap gage, a bench stand, a surface-finish gage or even a form system, keeping the “measuring loop” as small or as short as possible is important for better gage performance.

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The Versatility of Snap Gages

The many design modifications available in snap gages enables them to measure some of the most difficult dimensions, right at the point of manufacture.

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There’s a Micrometer for That

Match your micrometer choice to your specific machine shop needs.

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Maintaining an Air Gage System’s High Performance

Tight, clean and dry: The requirements of air gaging aren’t very different from mechanical gaging.

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Measuring Tools Basics: Faster and Better

In a high-volume production environment, the cost of inspection is related to the speed with which measurements can be made and interpreted.

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Measurement for True Surface Analysis

Optical metrology is providing more information, faster, about surfaces that were once impossible to measure and understand.

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Why QC Inspectors Should Consider Gaging Fixture Spring Rates

All fixtures for part gaging will have some amount of deflection or spring rate that can affect measurement accuracy. A better understanding of spring rate can enable quality control inspectors to detect and eliminate this possible error source.  

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Setting a Roughness Goal and Meeting It

Subjective surface finishes have no place in today’s high-precision manufacturing environment.

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Dial vs. Test Indicators

Dial and test indicators are close cousins. They are both mechanical magnifying devices used for dimensional comparison.

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What Do Manufacturers Really Know About the Surfaces of the Parts They Are Producing?

Knowing only the average roughness may not be enough. Other surface parameters can affect product quality.

Documenting Your Data Collection

Industry 4.0 helps tie gaging equipment data with part measurement for 100 percent traceability.  

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Less Is More with Dial Comparators

Why use a dial indicator with more than the needed range? A dial comparator offers less risk of misreading the dial without the cost of an electronic gage. 

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